Solid State Nuclear Magnetic Resonance 

TL;DR: Two-dimensional magic-angle spinning (triple quantum, single quantum) correlation pulse sequences and phase cycles based on the technique of Frydman and Harwood for the reconstruction of the isotropic spectrum of half-integer spin quadrupolar nuclei broadened to second-order are described.

TL;DR: The GIPAW method roots in the plane wave pseudopotential formalism of the density functional theory (DFT), and avoids the use of the cluster approximation, and is quickly becoming an essential tool for interpreting and understanding experimental NMR spectra, providing reliable assignments of the observed resonances to crystallographic sites or enabling a priori prediction of NMR data.

TL;DR: The chemical shift, delta, is redefined to avoid previous ambiguities but to leave practical usage unchanged, and Relations between the unified scale and recently published recommendations for referencing in aqueous solutions are discussed, as well as the special effects of working in the solid state with magic-angle spinning.

TL;DR: It is concluded that higher plant celluloses most likely possess a minor amount of the I alpha allomorph where the Ialpha/Ibeta ratio is probably less than 0.25.